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385684161 = 3140991243
BaseRepresentation
bin10110111111010…
…001001011000001
3222212201210012120
4112333101023001
51242213343121
6102134314453
712362155422
oct2677211301
9885653176
10385684161
11188788245
12a91b8a29
1361b9b4a5
1439319649
1523cd6bc6
hex16fd12c1

385684161 has 8 divisors (see below), whose sum is σ = 514616160. Its totient is φ = 256937472.

The previous prime is 385684153. The next prime is 385684163. The reversal of 385684161 is 161486583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 385684161 - 23 = 385684153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385684163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41395 + ... + 49848.

It is an arithmetic number, because the mean of its divisors is an integer number (64327020).

Almost surely, 2385684161 is an apocalyptic number.

It is an amenable number.

385684161 is a deficient number, since it is larger than the sum of its proper divisors (128931999).

385684161 is a wasteful number, since it uses less digits than its factorization.

385684161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92655.

The product of its digits is 138240, while the sum is 42.

The square root of 385684161 is about 19638.8431685779. The cubic root of 385684161 is about 727.9092997990.

The spelling of 385684161 in words is "three hundred eighty-five million, six hundred eighty-four thousand, one hundred sixty-one".

Divisors: 1 3 1409 4227 91243 273729 128561387 385684161